{"title":"Elena N. Boeck. The Bronze Horseman of Justinian in Constantinople, bespr. von András Kraft","authors":"A. Kraft","doi":"10.1515/bz-2022-0054","DOIUrl":"https://doi.org/10.1515/bz-2022-0054","url":null,"abstract":"","PeriodicalId":44281,"journal":{"name":"BYZANTINISCHE ZEITSCHRIFT","volume":"115 1","pages":"1129 - 1139"},"PeriodicalIF":0.3,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46146851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gabriele Zorloni, Geert Bosmans, Thomas Brall, Marco Caresana, Marijke De Saint-Hubert, Carles Domingo, Christian Ferrante, Francesca Ferrulli, Renata Kopec, Johannes Leidner, Vladimir Mares, Racell Nabha, Pawel Olko, Miguel Ángel Caballero-Pacheco, Werner Ruehm, Marco Silari, Liliana Stolarczyk, Jan Swakon, Marco Tisi, Sebastian Trinkl, Olivier Van Hoey, Gloria Vilches-Freixas
{"title":"Joint EURADOS WG9-WG11 rem-counter intercomparison in a Mevion S250i proton therapy facility with Hyperscan pulsed synchrocyclotron.","authors":"Gabriele Zorloni, Geert Bosmans, Thomas Brall, Marco Caresana, Marijke De Saint-Hubert, Carles Domingo, Christian Ferrante, Francesca Ferrulli, Renata Kopec, Johannes Leidner, Vladimir Mares, Racell Nabha, Pawel Olko, Miguel Ángel Caballero-Pacheco, Werner Ruehm, Marco Silari, Liliana Stolarczyk, Jan Swakon, Marco Tisi, Sebastian Trinkl, Olivier Van Hoey, Gloria Vilches-Freixas","doi":"10.1088/1361-6560/ac5b9c","DOIUrl":"10.1088/1361-6560/ac5b9c","url":null,"abstract":"<p><p>Objective Proton therapy is gaining popularity because of the improved dose delivery over conventional radiation therapy. The secondary dose to healthy tissues is dominated by secondary neutrons. Commercial rem-counters are valuable instruments for the on-line assessment of neutron ambient dose equivalent (H*(10)). In general, however, a priori knowledge of the type of facility and of the radiation field is required for the proper choice of any survey meter. The novel Mevion S250i Hyperscan synchrocyclotron mounts the accelerator directly on the gantry. It provides a scanned 227 MeV proton beam, delivered in pulses with a pulse width of 10 µs at 750 Hz frequency, which is afterwards degraded in energy by a range shifter modulator system. This environment is particularly challenging for commercial rem-counters; therefore, we tested the reliability of some of the most widespread rem-counters to understand their limits in the Mevion S250i stray neutron field. Approach This work, promoted by the European Radiation Dosimetry Group (EURADOS), describes a rem-counter intercomparison at the Maastro Proton Therapy centre in the Netherlands, which houses the novel Mevion S250i Hyperscan system. Several rem-counters were employed in the intercomparison (LUPIN, LINUS, WENDI-II, LB6411, NM2B-458, NM2B-495Pb), which included simulation of a patient treatment protocol employing a water tank phantom. The outcomes of the experiment were compared with models and data from the literature. Main results We found that only the LUPIN allowed for a correct assessment of H*(10) within a 20% uncertainty. All other rem-counters underestimated the reference H*(10) by factors from 2 to more than 10, depending on the detector model and on the neutron dose per pulse. In pulsed fields, the neutron dose per pulse is a fundamental parameter, while the average neutron dose rate is a secondary quantity. An average 150-200 µSv/GyRBE neutron H*(10) at various positions around the phantom and at distances between 186 cm and 300 cm from it was measured per unit therapeutic dose delivered to the target. Significance Our results are partially in line with results obtained at similar Mevion facilities employing passive energy modulation. Comparisons with facilities employing active energy modulation confirmed that the neutron H*(10) can increase up to more than a factor of 10 when passive energy modulation is employed. The challenging environment of the Mevion stray neutron field requires the use of specific rem-counters sensitive to high-energy neutrons (up to a few hundred MeV) and specifically designed to withstand pulsed neutron fields.</p>","PeriodicalId":44281,"journal":{"name":"BYZANTINISCHE ZEITSCHRIFT","volume":"112 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2022-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73910011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the toponymics of the Great Palace of Constantinople: the Daphne","authors":"Alfredo Calahorra Bartolomé","doi":"10.1515/bz-2022-0002","DOIUrl":"https://doi.org/10.1515/bz-2022-0002","url":null,"abstract":"Abstract The Great Palace of Constantinople has been subject to several investigations since the second half of the nineteenth century. All of them have been mostly concerned with the topographical, architectural and typological development of the imperial residence, leaving aside questions such as toponymics. This paper will deal with this issue taking into consideration the name of the complex of buildings that once was the core of the Constantinian Palace, the Daphne. Doing so, we will better understand the denomination of the Palace, and shed light on the functions related to several spaces, the courtly ritual and, in short, the representation of power through architecture in an imperial context. Besides, the present enquiry will challenge some topographical assumptions on the complex.","PeriodicalId":44281,"journal":{"name":"BYZANTINISCHE ZEITSCHRIFT","volume":"115 1","pages":"1 - 46"},"PeriodicalIF":0.3,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48022749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The silk industry around Naupaktos and its implications","authors":"Gang Wu","doi":"10.1515/bz-2022-0013","DOIUrl":"https://doi.org/10.1515/bz-2022-0013","url":null,"abstract":"Abstract The silk production around Naupaktos is better documented than other examples of the silk industry in Byzantine Central Greece, especially in terms of its organisation, industrial layout and technical parameters. However, in comparison with its much better-known Theban counterpart, the Naupactian silk industry remains underexplored in current scholarship. This article focuses on synthesising the information about the industry provided by the surviving writings of John Apokaukos, the metropolitan of Naupaktos c.1200-1232. It also seeks to evaluate how the result of this investigation may complement or revise our current knowledge of the silk industry in Byzantine Central Greece.","PeriodicalId":44281,"journal":{"name":"BYZANTINISCHE ZEITSCHRIFT","volume":"115 1","pages":"351 - 366"},"PeriodicalIF":0.3,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43827731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"“A statue of bronze, by which times of old used to honor men of rare example”: Materials of honorific statues in Late Antiquity","authors":"E. Öǧüş","doi":"10.1515/bz-2022-0009","DOIUrl":"https://doi.org/10.1515/bz-2022-0009","url":null,"abstract":"Abstract It is the purpose of this article to present the archaeological, epigraphic and literary evidence on the materials of honorific statues in Late Antiquity with a fresh outlook to delve into their cultural meaning and potential for manipulation and power display. The article questions how material choice and employment fits the conventions of state tradition and social customs, whether certain materials were deemed more prestigious and appropriate for the statues of the imperial family versus other honorands, and whether this prestige depended on the cost of the material or other visual/cultural factors. The results of the inquiry show that the choice of materials depended on a mix of factors and diverse local practices, and of all the available materials, bronze remained as the most widely-manipulated one.","PeriodicalId":44281,"journal":{"name":"BYZANTINISCHE ZEITSCHRIFT","volume":"115 1","pages":"211 - 246"},"PeriodicalIF":0.3,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47124153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Allegorie und Lob der Physik: Das Proömium der Paraphrase des Theodoros Metochites zu naturwissenschaftlichen Schriften des Aristoteles","authors":"Markos Kermanidis","doi":"10.1515/bz-2022-0006","DOIUrl":"https://doi.org/10.1515/bz-2022-0006","url":null,"abstract":"Abstract The present paper undertakes a hermeneutic analysis of the hitherto little investigated preface of Theodore Metochites᾽ Paraphrase of the natural scientific works of Aristotle. Based on a problematic quotation at the very beginning of the proem, the article shows that paraphrase does not only mean, for Metochites, the language-specific clarification of the obscure Aristotelian texts but mainly the elucidation and simplification of the relationship of physics to the rest of the philosophical curriculum, as well as of the interconnection between Aristotle‘s separate treatises of natural sciences. The preface proves to be an indirect, i.e. encoded testimony for the exegetical competition of Theodore Metochites with his coeval George Pachymeres and the most prominent ancient paraphraser of Aristotle, namely Themistius (4th century CE).","PeriodicalId":44281,"journal":{"name":"BYZANTINISCHE ZEITSCHRIFT","volume":"115 1","pages":"143 - 184"},"PeriodicalIF":0.3,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42577086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Textkritik im Dienste der Wahrheitsfindung? Das VI. Ökumenische Konzil (680/81) und seine Fälschungsnachweise","authors":"H. Ohme","doi":"10.1515/bz-2022-0010","DOIUrl":"https://doi.org/10.1515/bz-2022-0010","url":null,"abstract":"Abstract This article investigates the plausibility of the proof presented at the Sixth Ecumenical Council (680/81) to show that the Logos of Patriarch Menas (536-552) and the two letters of Pope Vigilius (537-555) were forgeries. These texts were among the most important testimonia of the so-called Monotheletes, and prove the assertion of one operation and one will in Christ long before the controversy of the seventh century. Through an analysis of the conciliar acts and other texts it is shown that the argumentation of the council was not only incoherent and self-contradictory but actually scandalous, since the evidence presented by an authentic papyrus roll of the Acts of the Fifth Council, with its clear proof of the authenticity of the Vigilius letters, was ignored. In an adoption and further development of the frequently overlooked treatment of this matter in the 1971 edition of the Acts of the Fifth Ecumenical Council (553) (ACO, ser. I, 4/1) the following is demonstrated: the discovery of the longer first edition of the Acts, containing the Vigilius letters, in the original papyrus rolls of the Acts of the Fifth Council led, from the beginning of the so-called monenergist-monothelete controversy, to the (re‐)introduction of the disputed texts into the shorter second edition contained in codices. It is indisputable that these texts are authentic.","PeriodicalId":44281,"journal":{"name":"BYZANTINISCHE ZEITSCHRIFT","volume":"115 1","pages":"247 - 286"},"PeriodicalIF":0.3,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45516737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A list of village payments and the bouleutic career of Theodoros","authors":"Marcin Kotyl","doi":"10.1515/bz-2022-0007","DOIUrl":"https://doi.org/10.1515/bz-2022-0007","url":null,"abstract":"Abstract The article discusses the bouleutic career of certain Theodoros, son of Komasios flourished in fourth-century Hermopolis. Based on an edition of a new papyrus fragment (P.Giss. inv. 307), it argues that Theodoros - before he was the riparius in 362 CE - served as the praepositus pagi. Also, a revision of CPR VIII 36,7 reveals that at a certain point in his career Theodoros was called the prototypos poleos, which is a forerunner of the later proteuon or the honorary titulature for members of the city council.","PeriodicalId":44281,"journal":{"name":"BYZANTINISCHE ZEITSCHRIFT","volume":"115 1","pages":"185 - 192"},"PeriodicalIF":0.3,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44295768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}