During his career, Carpenter has held a number of term appointments at public and private institutions, including Visiting Scientist at Phillips Petroleum Company, Nuclear Technology Branch, Idaho Falls, Idaho, Fall 1965; Argonne National Laboratory, Solid State Science Division, 1971-1972, 1973; Los Alamos Scientific Laboratory, Physics Division, 1973; and the Japanese Laboratory for High Energy Physics, Kō Enerugī Kasokuki Kenkyū Kikō, (KEK), 1982 and 1993.
This is presently achieved at few large scale facilities in the world: the CMMS continuous source at TRIUMF in Vancouver, Canada; the SµS continuous source at the Paul Scherrer Institut (PSI) in Villigen, Switzerland; the ISIS and RIKEN-RAL pulsed sources at the Rutherford Appleton Laboratory in Chilton, United Kingdom; and the J-PARC facility in Tokai, Japan, where a new pulsed source is being built to replace that at KEK in Tsukuba, Japan.
During parallel governance (1989–1999) and after the 1999 war in Kosovo several new bands emerged, among which most famous are Diadema, KEK ("Kreativ e jo Komercial" = Crative and not commercial), 7me7, The Hithat, Cute Babulja, Por-no, Gre3n, Retrovizorja.